Sure thing! We've got 946 and we're gonna multiply it by 405. That's the same as adding 946 to itself 405 times.
Step 1: 0 + 946 = 946
Step 2: 946 + 946 = 1892
Step 3: 1892 + 946 = 2838
Step 4: 2838 + 946 = 3784
Step 5: 3784 + 946 = 4730
Step 6: 4730 + 946 = 5676
Step 7: 5676 + 946 = 6622
Step 8: 6622 + 946 = 7568
Step 9: 7568 + 946 = 8514
Step 10: 8514 + 946 = 9460
Step 11: 9460 + 946 = 10406
Step 12: 10406 + 946 = 11352
Step 13: 11352 + 946 = 12298
Step 14: 12298 + 946 = 13244
Step 15: 13244 + 946 = 14190
Step 16: 14190 + 946 = 15136
Step 17: 15136 + 946 = 16082
Step 18: 16082 + 946 = 17028
Step 19: 17028 + 946 = 17974
Step 20: 17974 + 946 = 18920
Step 21: 18920 + 946 = 19866
Step 22: 19866 + 946 = 20812
Step 23: 20812 + 946 = 21758
Step 24: 21758 + 946 = 22704
Step 25: 22704 + 946 = 23650
Step 26: 23650 + 946 = 24596
Step 27: 24596 + 946 = 25542
Step 28: 25542 + 946 = 26488
Step 29: 26488 + 946 = 27434
Step 30: 27434 + 946 = 28380
Step 31: 28380 + 946 = 29326
Step 32: 29326 + 946 = 30272
Step 33: 30272 + 946 = 31218
Step 34: 31218 + 946 = 32164
Step 35: 32164 + 946 = 33110
Step 36: 33110 + 946 = 34056
Step 37: 34056 + 946 = 35002
Step 38: 35002 + 946 = 35948
Step 39: 35948 + 946 = 36894
Step 40: 36894 + 946 = 37840
Step 41: 37840 + 946 = 38786
Step 42: 38786 + 946 = 39732
Step 43: 39732 + 946 = 40678
Step 44: 40678 + 946 = 41624
Step 45: 41624 + 946 = 42570
Step 46: 42570 + 946 = 43516
Step 47: 43516 + 946 = 44462
Step 48: 44462 + 946 = 45408
Step 49: 45408 + 946 = 46354
Step 50: 46354 + 946 = 47300
Step 51: 47300 + 946 = 48246
Step 52: 48246 + 946 = 49192
Step 53: 49192 + 946 = 50138
Step 54: 50138 + 946 = 51084
Step 55: 51084 + 946 = 52030
Step 56: 52030 + 946 = 52976
Step 57: 52976 + 946 = 53922
Step 58: 53922 + 946 = 54868
Step 59: 54868 + 946 = 55814
Step 60: 55814 + 946 = 56760
Step 61: 56760 + 946 = 57706
Step 62: 57706 + 946 = 58652
Step 63: 58652 + 946 = 59598
Step 64: 59598 + 946 = 60544
Step 65: 60544 + 946 = 61490
Step 66: 61490 + 946 = 62436
Step 67: 62436 + 946 = 63382
Step 68: 63382 + 946 = 64328
Step 69: 64328 + 946 = 65274
Step 70: 65274 + 946 = 66220
Step 71: 66220 + 946 = 67166
Step 72: 67166 + 946 = 68112
Step 73: 68112 + 946 = 69058
Step 74: 69058 + 946 = 70004
Step 75: 70004 + 946 = 70950
Step 76: 70950 + 946 = 71896
Step 77: 71896 + 946 = 72842
Step 78: 72842 + 946 = 73788
Step 79: 73788 + 946 = 74734
Step 80: 74734 + 946 = 75680
Step 81: 75680 + 946 = 76626
Step 82: 76626 + 946 = 77572
Step 83: 77572 + 946 = 78518
Step 84: 78518 + 946 = 79464
Step 85: 79464 + 946 = 80410
Step 86: 80410 + 946 = 81356
Step 87: 81356 + 946 = 82302
Step 88: 82302 + 946 = 83248
Step 89: 83248 + 946 = 84194
Step 90: 84194 + 946 = 85140
Step 91: 85140 + 946 = 86086
Step 92: 86086 + 946 = 87032
Step 93: 87032 + 946 = 87978
Step 94: 87978 + 946 = 88924
Step 95: 88924 + 946 = 89870
Step 96: 89870 + 946 = 90816
Step 97: 90816 + 946 = 91762
Step 98: 91762 + 946 = 92708
Step 99: 92708 + 946 = 93654
Step 100: 93654 + 946 = 94600
Step 101: 94600 + 946 = 95546
Step 102: 95546 + 946 = 96492
Step 103: 96492 + 946 = 97438
Step 104: 97438 + 946 = 98384
Step 105: 98384 + 946 = 99330
Step 106: 99330 + 946 = 100276
Step 107: 100276 + 946 = 101222
Step 108: 101222 + 946 = 102168
Step 109: 102168 + 946 = 103114
Step 110: 103114 + 946 = 104060
Step 111: 104060 + 946 = 105006
Step 112: 105006 + 946 = 105952
Step 113: 105952 + 946 = 106898
Step 114: 106898 + 946 = 107844
Step 115: 107844 + 946 = 108790
Step 116: 108790 + 946 = 109736
Step 117: 109736 + 946 = 110682
Step 118: 110682 + 946 = 111628
Step 119: 111628 + 946 = 112574
Step 120: 112574 + 946 = 113520
Step 121: 113520 + 946 = 114466
Step 122: 114466 + 946 = 115412
Step 123: 115412 + 946 = 116358
Step 124: 116358 + 946 = 117304
Step 125: 117304 + 946 = 118250
Step 126: 118250 + 946 = 119196
Step 127: 119196 + 946 = 120142
Step 128: 120142 + 946 = 121088
Step 129: 121088 + 946 = 122034
Step 130: 122034 + 946 = 122980
Step 131: 122980 + 946 = 123926
Step 132: 123926 + 946 = 124872
Step 133: 124872 + 946 = 125818
Step 134: 125818 + 946 = 126764
Step 135: 126764 + 946 = 127710
Step 136: 127710 + 946 = 128656
Step 137: 128656 + 946 = 129602
Step 138: 129602 + 946 = 130548
Step 139: 130548 + 946 = 131494
Step 140: 131494 + 946 = 132440
Step 141: 132440 + 946 = 133386
Step 142: 133386 + 946 = 134332
Step 143: 134332 + 946 = 135278
Step 144: 135278 + 946 = 136224
Step 145: 136224 + 946 = 137170
Step 146: 137170 + 946 = 138116
Step 147: 138116 + 946 = 139062
Step 148: 139062 + 946 = 140008
Step 149: 140008 + 946 = 140954
Step 150: 140954 + 946 = 141900
Step 151: 141900 + 946 = 142846
Step 152: 142846 + 946 = 143792
Step 153: 143792 + 946 = 144738
Step 154: 144738 + 946 = 145684
Step 155: 145684 + 946 = 146630
Step 156: 146630 + 946 = 147576
Step 157: 147576 + 946 = 148522
Step 158: 148522 + 946 = 149468
Step 159: 149468 + 946 = 150414
Step 160: 150414 + 946 = 151360
Step 161: 151360 + 946 = 152306
Step 162: 152306 + 946 = 153252
Step 163: 153252 + 946 = 154198
Step 164: 154198 + 946 = 155144
Step 165: 155144 + 946 = 156090
Step 166: 156090 + 946 = 157036
Step 167: 157036 + 946 = 157982
Step 168: 157982 + 946 = 158928
Step 169: 158928 + 946 = 159874
Step 170: 159874 + 946 = 160820
Step 171: 160820 + 946 = 161766
Step 172: 161766 + 946 = 162712
Step 173: 162712 + 946 = 163658
Step 174: 163658 + 946 = 164604
Step 175: 164604 + 946 = 165550
Step 176: 165550 + 946 = 166496
Step 177: 166496 + 946 = 167442
Step 178: 167442 + 946 = 168388
Step 179: 168388 + 946 = 169334
Step 180: 169334 + 946 = 170280
Step 181: 170280 + 946 = 171226
Step 182: 171226 + 946 = 172172
Step 183: 172172 + 946 = 173118
Step 184: 173118 + 946 = 174064
Step 185: 174064 + 946 = 175010
Step 186: 175010 + 946 = 175956
Step 187: 175956 + 946 = 176902
Step 188: 176902 + 946 = 177848
Step 189: 177848 + 946 = 178794
Step 190: 178794 + 946 = 179740
Step 191: 179740 + 946 = 180686
Step 192: 180686 + 946 = 181632
Step 193: 181632 + 946 = 182578
Step 194: 182578 + 946 = 183524
Step 195: 183524 + 946 = 184470
Step 196: 184470 + 946 = 185416
Step 197: 185416 + 946 = 186362
Step 198: 186362 + 946 = 187308
Step 199: 187308 + 946 = 188254
Step 200: 188254 + 946 = 189200
Step 201: 189200 + 946 = 190146
Step 202: 190146 + 946 = 191092
Step 203: 191092 + 946 = 192038
Step 204: 192038 + 946 = 192984
Step 205: 192984 + 946 = 193930
Step 206: 193930 + 946 = 194876
Step 207: 194876 + 946 = 195822
Step 208: 195822 + 946 = 196768
Step 209: 196768 + 946 = 197714
Step 210: 197714 + 946 = 198660
Step 211: 198660 + 946 = 199606
Step 212: 199606 + 946 = 200552
Step 213: 200552 + 946 = 201498
Step 214: 201498 + 946 = 202444
Step 215: 202444 + 946 = 203390
Step 216: 203390 + 946 = 204336
Step 217: 204336 + 946 = 205282
Step 218: 205282 + 946 = 206228
Step 219: 206228 + 946 = 207174
Step 220: 207174 + 946 = 208120
Step 221: 208120 + 946 = 209066
Step 222: 209066 + 946 = 210012
Step 223: 210012 + 946 = 210958
Step 224: 210958 + 946 = 211904
Step 225: 211904 + 946 = 212850
Step 226: 212850 + 946 = 213796
Step 227: 213796 + 946 = 214742
Step 228: 214742 + 946 = 215688
Step 229: 215688 + 946 = 216634
Step 230: 216634 + 946 = 217580
Step 231: 217580 + 946 = 218526
Step 232: 218526 + 946 = 219472
Step 233: 219472 + 946 = 220418
Step 234: 220418 + 946 = 221364
Step 235: 221364 + 946 = 222310
Step 236: 222310 + 946 = 223256
Step 237: 223256 + 946 = 224202
Step 238: 224202 + 946 = 225148
Step 239: 225148 + 946 = 226094
Step 240: 226094 + 946 = 227040
Step 241: 227040 + 946 = 227986
Step 242: 227986 + 946 = 228932
Step 243: 228932 + 946 = 229878
Step 244: 229878 + 946 = 230824
Step 245: 230824 + 946 = 231770
Step 246: 231770 + 946 = 232716
Step 247: 232716 + 946 = 233662
Step 248: 233662 + 946 = 234608
Step 249: 234608 + 946 = 235554
Step 250: 235554 + 946 = 236500
Step 251: 236500 + 946 = 237446
Step 252: 237446 + 946 = 238392
Step 253: 238392 + 946 = 239338
Step 254: 239338 + 946 = 240284
Step 255: 240284 + 946 = 241230
Step 256: 241230 + 946 = 242176
Step 257: 242176 + 946 = 243122
Step 258: 243122 + 946 = 244068
Step 259: 244068 + 946 = 245014
Step 260: 245014 + 946 = 245960
Step 261: 245960 + 946 = 246906
Step 262: 246906 + 946 = 247852
Step 263: 247852 + 946 = 248798
Step 264: 248798 + 946 = 249744
Step 265: 249744 + 946 = 250690
Step 266: 250690 + 946 = 251636
Step 267: 251636 + 946 = 252582
Step 268: 252582 + 946 = 253528
Step 269: 253528 + 946 = 254474
Step 270: 254474 + 946 = 255420
Step 271: 255420 + 946 = 256366
Step 272: 256366 + 946 = 257312
Step 273: 257312 + 946 = 258258
Step 274: 258258 + 946 = 259204
Step 275: 259204 + 946 = 260150
Step 276: 260150 + 946 = 261096
Step 277: 261096 + 946 = 262042
Step 278: 262042 + 946 = 262988
Step 279: 262988 + 946 = 263934
Step 280: 263934 + 946 = 264880
Step 281: 264880 + 946 = 265826
Step 282: 265826 + 946 = 266772
Step 283: 266772 + 946 = 267718
Step 284: 267718 + 946 = 268664
Step 285: 268664 + 946 = 269610
Step 286: 269610 + 946 = 270556
Step 287: 270556 + 946 = 271502
Step 288: 271502 + 946 = 272448
Step 289: 272448 + 946 = 273394
Step 290: 273394 + 946 = 274340
Step 291: 274340 + 946 = 275286
Step 292: 275286 + 946 = 276232
Step 293: 276232 + 946 = 277178
Step 294: 277178 + 946 = 278124
Step 295: 278124 + 946 = 279070
Step 296: 279070 + 946 = 280016
Step 297: 280016 + 946 = 280962
Step 298: 280962 + 946 = 281908
Step 299: 281908 + 946 = 282854
Step 300: 282854 + 946 = 283800
Step 301: 283800 + 946 = 284746
Step 302: 284746 + 946 = 285692
Step 303: 285692 + 946 = 286638
Step 304: 286638 + 946 = 287584
Step 305: 287584 + 946 = 288530
Step 306: 288530 + 946 = 289476
Step 307: 289476 + 946 = 290422
Step 308: 290422 + 946 = 291368
Step 309: 291368 + 946 = 292314
Step 310: 292314 + 946 = 293260
Step 311: 293260 + 946 = 294206
Step 312: 294206 + 946 = 295152
Step 313: 295152 + 946 = 296098
Step 314: 296098 + 946 = 297044
Step 315: 297044 + 946 = 297990
Step 316: 297990 + 946 = 298936
Step 317: 298936 + 946 = 299882
Step 318: 299882 + 946 = 300828
Step 319: 300828 + 946 = 301774
Step 320: 301774 + 946 = 302720
Step 321: 302720 + 946 = 303666
Step 322: 303666 + 946 = 304612
Step 323: 304612 + 946 = 305558
Step 324: 305558 + 946 = 306504
Step 325: 306504 + 946 = 307450
Step 326: 307450 + 946 = 308396
Step 327: 308396 + 946 = 309342
Step 328: 309342 + 946 = 310288
Step 329: 310288 + 946 = 311234
Step 330: 311234 + 946 = 312180
Step 331: 312180 + 946 = 313126
Step 332: 313126 + 946 = 314072
Step 333: 314072 + 946 = 315018
Step 334: 315018 + 946 = 315964
Step 335: 315964 + 946 = 316910
Step 336: 316910 + 946 = 317856
Step 337: 317856 + 946 = 318802
Step 338: 318802 + 946 = 319748
Step 339: 319748 + 946 = 320694
Step 340: 320694 + 946 = 321640
Step 341: 321640 + 946 = 322586
Step 342: 322586 + 946 = 323532
Step 343: 323532 + 946 = 324478
Step 344: 324478 + 946 = 325424
Step 345: 325424 + 946 = 326370
Step 346: 326370 + 946 = 327316
Step 347: 327316 + 946 = 328262
Step 348: 328262 + 946 = 329208
Step 349: 329208 + 946 = 330154
Step 350: 330154 + 946 = 331100
Step 351: 331100 + 946 = 332046
Step 352: 332046 + 946 = 332992
Step 353: 332992 + 946 = 333938
Step 354: 333938 + 946 = 334884
Step 355: 334884 + 946 = 335830
Step 356: 335830 + 946 = 336776
Step 357: 336776 + 946 = 337722
Step 358: 337722 + 946 = 338668
Step 359: 338668 + 946 = 339614
Step 360: 339614 + 946 = 340560
Step 361: 340560 + 946 = 341506
Step 362: 341506 + 946 = 342452
Step 363: 342452 + 946 = 343398
Step 364: 343398 + 946 = 344344
Step 365: 344344 + 946 = 345290
Step 366: 345290 + 946 = 346236
Step 367: 346236 + 946 = 347182
Step 368: 347182 + 946 = 348128
Step 369: 348128 + 946 = 349074
Step 370: 349074 + 946 = 350020
Step 371: 350020 + 946 = 350966
Step 372: 350966 + 946 = 351912
Step 373: 351912 + 946 = 352858
Step 374: 352858 + 946 = 353804
Step 375: 353804 + 946 = 354750
Step 376: 354750 + 946 = 355696
Step 377: 355696 + 946 = 356642
Step 378: 356642 + 946 = 357588
Step 379: 357588 + 946 = 358534
Step 380: 358534 + 946 = 359480
Step 381: 359480 + 946 = 360426
Step 382: 360426 + 946 = 361372
Step 383: 361372 + 946 = 362318
Step 384: 362318 + 946 = 363264
Step 385: 363264 + 946 = 364210
Step 386: 364210 + 946 = 365156
Step 387: 365156 + 946 = 366102
Step 388: 366102 + 946 = 367048
Step 389: 367048 + 946 = 367994
Step 390: 367994 + 946 = 368940
Step 391: 368940 + 946 = 369886
Step 392: 369886 + 946 = 370832
Step 393: 370832 + 946 = 371778
Step 394: 371778 + 946 = 372724
Step 395: 372724 + 946 = 373670
Step 396: 373670 + 946 = 374616
Step 397: 374616 + 946 = 375562
Step 398: 375562 + 946 = 376508
Step 399: 376508 + 946 = 377454
Step 400: 377454 + 946 = 378400
Step 401: 378400 + 946 = 379346
Step 402: 379346 + 946 = 380292
Step 403: 380292 + 946 = 381238
Step 404: 381238 + 946 = 382184
Step 405: 382184 + 946 = 383130

So, 946*405 = 383130